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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293/* SPDX-License-Identifier: GPL-2.0-or-later */#ifndef _ASM_POWERPC_MODULE_H#define _ASM_POWERPC_MODULE_H#ifdef __KERNEL__
#include <linux/list.h>#include <asm/bug.h>#include <asm-generic/module.h>
#ifndef __powerpc64__/* * Thanks to Paul M for explaining this. * * PPC can only do rel jumps += 32MB, and often the kernel and other * modules are further away than this. So, we jump to a table of * trampolines attached to the module (the Procedure Linkage Table) * whenever that happens. */
struct ppc_plt_entry { /* 16 byte jump instruction sequence (4 instructions) */ unsigned int jump[4];};#endif /* __powerpc64__ */
struct mod_arch_specific {#ifdef __powerpc64__ unsigned int stubs_section; /* Index of stubs section in module */ unsigned int stub_count; /* Number of stubs used */#ifdef CONFIG_PPC_KERNEL_PCREL unsigned int got_section; /* What section is the GOT? */ unsigned int pcpu_section; /* .data..percpu section */#else unsigned int toc_section; /* What section is the TOC? */ bool toc_fixed; /* Have we fixed up .TOC.? */#endif
#ifdef CONFIG_PPC64_ELF_ABI_V1 /* For module function descriptor dereference */ unsigned long start_opd; unsigned long end_opd;#endif#else /* powerpc64 */ /* Indices of PLT sections within module. */ unsigned int core_plt_section; unsigned int init_plt_section;#endif /* powerpc64 */
#ifdef CONFIG_DYNAMIC_FTRACE unsigned long tramp; unsigned long tramp_regs;#ifdef CONFIG_PPC_FTRACE_OUT_OF_LINE struct ftrace_ool_stub *ool_stubs; unsigned int ool_stub_count; unsigned int ool_stub_index;#endif#endif};
/* * Select ELF headers. * Make empty sections for module_frob_arch_sections to expand. */
#ifdef __powerpc64__# ifdef MODULE asm(".section .stubs,\"ax\",@nobits; .align 3; .previous");# ifdef CONFIG_PPC_KERNEL_PCREL asm(".section .mygot,\"a\",@nobits; .align 3; .previous");# endif# endif#else# ifdef MODULE asm(".section .plt,\"ax\",@nobits; .align 3; .previous"); asm(".section .init.plt,\"ax\",@nobits; .align 3; .previous");# endif /* MODULE */#endif
#ifdef CONFIG_DYNAMIC_FTRACEint module_trampoline_target(struct module *mod, unsigned long trampoline, unsigned long *target);int module_finalize_ftrace(struct module *mod, const Elf_Shdr *sechdrs);#elsestatic inline int module_finalize_ftrace(struct module *mod, const Elf_Shdr *sechdrs){ return 0;}#endif
#endif /* __KERNEL__ */#endif /* _ASM_POWERPC_MODULE_H */